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Global Component To Calculate Capacitance Has Disappeared?
Posted Jun 9, 2016, 9:23 a.m. EDT Low-Frequency Electromagnetics, Modeling Tools & Definitions, Parameters, Variables, & Functions, Results & Visualization, Studies & Solvers Version 5.1 2 Replies
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Hello,
I am using the AC/DC electrostatics module to calculate the capacitance between two metal lines (a component of the overall detector I am modeling). I defined one of the lines as the terminal and another of the lines as ground using the boundary conditions, and applied a voltage. I have successfully obtained the capacitance between two objects before in COMSOL, but when I follow the same steps as I did last time by going to Global Evaluation (Component 1>Electrostatics>Terminals>es.C11 - Capacitance), es.C11 does not appear. Is there any reason why I am able to obtain capacitance this way in some models and not in others?
Thanks for any help.
I am using the AC/DC electrostatics module to calculate the capacitance between two metal lines (a component of the overall detector I am modeling). I defined one of the lines as the terminal and another of the lines as ground using the boundary conditions, and applied a voltage. I have successfully obtained the capacitance between two objects before in COMSOL, but when I follow the same steps as I did last time by going to Global Evaluation (Component 1>Electrostatics>Terminals>es.C11 - Capacitance), es.C11 does not appear. Is there any reason why I am able to obtain capacitance this way in some models and not in others?
Thanks for any help.
2 Replies Last Post Apr 15, 2017, 5:54 p.m. EDT
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Posted:
8 years ago
Hi
Have you checked that the variable names has not just change a little in the newer version ?
Use the variable finder systematically it's quite easy, also often the CNTR-Space works for many entries.
Else you can turn on the Equation view and check the variable names there. I used the capacitance calculation last week so it is definitively there, but I'm not by my workstation just now ;)
--
Good luck
Ivar
Have you checked that the variable names has not just change a little in the newer version ?
Use the variable finder systematically it's quite easy, also often the CNTR-Space works for many entries.
Else you can turn on the Equation view and check the variable names there. I used the capacitance calculation last week so it is definitively there, but I'm not by my workstation just now ;)
--
Good luck
Ivar
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Posted:
8 years ago
Hi Ivar,
I have the same question on processing my model. Somehow I cannot get the any evaluated value by global evaluation in the way described in this topic. I need to obtain the capacitance for the model. Could you tell me how to do it in details?
I have the same question on processing my model. Somehow I cannot get the any evaluated value by global evaluation in the way described in this topic. I need to obtain the capacitance for the model. Could you tell me how to do it in details?